CVE-2022-21716

一、漏洞信息
 漏洞编号：[CVE-2022-21716](https://nvd.nist.gov/vuln/detail/CVE-2022-21716)
 漏洞归属组件：[python-twisted](https://gitee.com/src-openeuler/python-twisted)
 漏洞归属的版本：18.9.0
 CVSS V3.0分值：
  BaseScore：7.5 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.
 漏洞公开时间：2022-03-04 05:15
 漏洞创建时间：2022-03-11 04:31:06
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-21716
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| MISC | https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 |  |
| CONFIRM | https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx |  |
| MISC | https://twistedmatrix.com/trac/ticket/10284 |  |
| MISC | https://github.com/twisted/twisted/releases/tag/twisted-22.2.0 |  |
| MLIST | https://lists.debian.org/debian-lts-announce/2022/03/msg00009.html |  |
| MISC | https://www.oracle.com/security-alerts/cpuapr2022.html |  |
| FEDORA | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLKHA6WREIVAMBQD7KKWYHPHGGNKMAG6/ |  |
| FEDORA | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7U6KYDTOLPICAVSR34G2WRYLFBD2YW5K/ |  |
| nvd | https://access.redhat.com/security/cve/CVE-2022-21716 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-21716 |  |
| suse_bugzilla | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21716 |  |
| suse_bugzilla | https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 |  |
| suse_bugzilla | https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx |  |
| suse_bugzilla | http://www.cvedetails.com/cve/CVE-2022-21716/ |  |
| suse_bugzilla | https://github.com/twisted/twisted/releases/tag/twisted-22.2.0 |  |
| redhat_bugzilla | https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx |  |
| redhat_bugzilla | https://github.com/twisted/twisted/releases/tag/twisted-22.2.0 |  |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21716 |  |
| ubuntu | https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 |  |
| ubuntu | https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx |  |
| ubuntu | https://twistedmatrix.com/trac/ticket/10284 |  |
| ubuntu | https://github.com/twisted/twisted/releases/tag/twisted-22.2.0 |  |
| ubuntu | https://ubuntu.com/security/notices/USN-5354-1 |  |
| ubuntu | https://ubuntu.com/security/notices/USN-5354-2 |  |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2022-21716 |  |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2022-21716 |  |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2022-21716 |  |
| debian | https://security-tracker.debian.org/tracker/CVE-2022-21716 |  |
| oracle | https://www.oracle.com/security-alerts/bulletinapr2022.html |  |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  其它
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 |  | MISC |
|  |  | https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 |  | suse_bugzilla |
|  |  | https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 |  | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
                    Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as nc -rv localhost 22 < /dev/zero. A patch is available in version 22.2.0. There are currently no known workarounds.         
 openEuler评分：
  7.5
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP3(18.9.0):受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS(18.9.0):受影响
4.openEuler-20.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP1(22.4.0):不受影响
6.openEuler-22.03-LTS-SP2(22.4.0):不受影响
7.openEuler-22.03-LTS-SP3:不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1:否
2.openEuler-20.03-LTS-SP3(18.9.0):否
3.openEuler-20.03-LTS-SP4:否
4.openEuler-22.03-LTS(18.9.0):否
5.openEuler-22.03-LTS-SP1(22.4.0):否
6.openEuler-22.03-LTS-SP2(22.4.0):否
7.openEuler-22.03-LTS-SP3:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2023-1970

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